| 钢质药筒抽筒阻力的理论计算公式 |
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| 引用本文： | 王永辉,张玉惠,曲长征.钢质药筒抽筒阻力的理论计算公式[J].军械工程学院学报,1998(2). |
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| 作者姓名： | 王永辉 张玉惠 曲长征 |
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| 作者单位： | 军械工程学院火炮与自动武器教研室，军械工程学院火炮与自动武器教研室，军械工程学院火炮与自动武器教研室 石家庄 050003，石家庄 050003，石家庄 050003 |
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| 摘 要： | 某型自行火炮采用封闭式药仓,使用钢质药筒,要求抽筒率达到百分之百。但由于该炮膛压较高,使得钢质药筒的变形加大,不抽筒率超标严重。通过建立钢质药筒抽筒阻力的理论计算公式,求出了药筒与药室之间的接触压力和抽筒阻力,与实验结果比较,符合较好。为修改火炮结构,提高抽筒率提供了一条理论依据。
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| 关 键 词： | 钢质药筒 弹塑性 抽筒阻力 |
THE THEORETICAL COMPUTATION FORMULA OF EXTRACTING ,DRAG FOR STEEL CARTRIDGE CASE |
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| Wang Yonghui Zhang Yuhui Qu Changzheng.THE THEORETICAL COMPUTATION FORMULA OF EXTRACTING ,DRAG FOR STEEL CARTRIDGE CASE[J].Journal of Ordnance Engineering College,1998(2). |
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| Authors: | Wang Yonghui Zhang Yuhui Qu Changzheng |
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| Institution: | Teaching and Research Section of Gun and Automatic Weapon |
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| Abstract: | Because of using the confined powder case and using the steel cartridge case, the extraction ratio of the self - propelled gun must come up to a hundred percent. But because the chamber pressure of this gun is high, the deformation of the steel cartridge case is enlarged, and the extraction ratio cannot reach the standard. The computation formula of extracting drag being established,the engaging pressure and the extraction drag between the powder chamber and the cartridge case are obtained. The result of computation agrees well with the experimental finding. A theoretical foundation is furnished for the structure design of gun and increasing the extraction ratio. |
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| Keywords: | steel cartridge case elastoplastic extracting drag |
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